Yarn winding machine



Sept. 27, 1938. W. H. BOWDEN y YARN WINDING MACHINE Filed Nov. 26, 1935y 2 Shets-Sheet l Sept. 27, 1938, W, H, Bowl-DEN 2,131,470

YARN WINDING MACHINE Filed Nov. 2e, 1955 2 sheets-sheet 2 Wol-"er )'(enfBowdsr N V NTOE.

Patented Sept. 27,1938

UNITED stares YARN WINDING MACHINE Y Walter Henry Bowden, East .GeelongAustralia Application November 26, 1935, Serial No. 51,567 In AustraliaNovember 28, 1934 Claims.

This invention relates to machines for winding yarn on to spools orbobbins helically in layers of repeatedly changing direction.

One object of this invention is to provide a 5l yarn winding machine inwhich the tension on the yarn does not increase as the diameter oi thespool or bobbin increases, thus obviating the risk of varying thethickness of the yarn.

Y v A further object of this invention is to provide V a yarn windingmachine in which chafing of yarn during its travel through moving guidemeans is minimized.

A still further object of this invention is to provide a yarn windingmachine in which the 151` spools or bobbins are supported without theaid of holding means which would retard their removal from theirsupporting axles,

Another object ofthis invention is to provide a simple and eicient yarnwinding machine which occupies small iloor space.

A still further object of this invention is to provide a yarn Windingmachine which is so compact and accessible that each operator mayclosely supervise the Winding of a large number j of spools or bobbins,repair any breaks, and re move completed spools or bobbins with minimumloss of time.

An improved yarn Winding machine, according to this invention, includesa drum adapted to.

said slipper, and a projection from each slipper engaging the saidundulating slot or groove. The number of spools or bobbins which may bewound simultaneously is relative to the size of the drum and the size ofthe wound spools orrcheeses and the shape of the guide groove is suchthat each varn guide is recip-rocated one or more times during eachrevolution of the drum.

' Yarn extends from a reciprocating guide to a spool or bobbin and meetsthe exterior of the lat- 5u ter adjacent to its point of Contact withthe drum so that the angle of the yarn between these points does notvary and the tension on the yarn remains constant from the commencementto the completion of Winding.

But in order that the above and other features (oi. 24a-,355)

of this'invention may be more readily understood,

a practical machine constructed in accordance l with this invention Willnow be rdescribed withY reference to the accompanying drawings inwhichz- Q l 5i Fig. l is a perspectivevew of a machine arranged to Windeight cheeses simultaneously. Fig. 2 is a sectional plan of the grooveddrum K and adjacent parts.

Y Fig.` 3 is a front elevation of a grooved drum. 10';

Fig. i is' a detail side elevation showing part of the grooved drum andone of the Winding units. Fig. 5 is a detail plan View of part of thegrooved drum and one of the Winding units. 1:5

Fig. 6 is a detail side elevation showing part of the grooved drum and aWinding unit for conical spools or bobbins. v

Fig. 7 is a front elevationof a drum having a larger diameter than thatshown in Fig. 3. 29: i'

Fig. 8 is` a detail view of roller means engaging the grooved drum.

The machine may be supported on Aany suitable framework such as apluralityof legs II connected by transverse braces IIa. A plate I2 is 25iixed to the vupper ends of the frame uprights: I I and a tab-le I3 issupported above plate I 2, by

stays I4. l I

A drum I5 located between the plate I2 and table i3 is xed on a verticalshaft I6 which 30, may be supported in any suitable manner. Shaft i6carries a disc Il the periphery of which contacts with a friction plateI8 that is fixed on a shaft I9 and Vis revolved by a belt 20 from anelectric Vmotor 2l. Disc Il is lfixed. on shaft I6 '3.5, in any desiredposition by means of a set screw (not shown). By adjusting the positionof disc il along shaft It relatively to plate I8, the speed of shaft I6and so of drum I5 may be adjusted to suit the nature of theyarn beingWound, the .40 rotation being slower for tender yarn than for toughyarn. Y

Each stay I4 constitutes a guide rail for a slipper 22 slidablysupported thereon. A projection such as a stud 22a extends from eachslipper to 45 engage an undulating slot or groove 23 in drumV I5. Eachsaid projection 22@L may carry an antifriction roller as 22b (seerFig.7) of` bre or synthetic resin r other suitable material.

The slot or groove 23 is of such 'shape that it 50 is adapted toreciprocate each slipper 22 a dis--K tance equal to the length of eachWinding. With a small drum as in Figs. 1 to 3 the shape of the groovewill be such that each slipper is reciprocated once during eachrevolution but with a 55 larger drum the number of reciprocations isincreased proportionately thus with a drum three times the size of thatshown in Fig. 3 the shape of the groove is such that each slipper willbe reciprocated three times during each revolution of the drum (see Fig.'7).

Each slipper 22 carries a yarn guide 24 through which yarn travels froma supply source to a winding spindle.

Axles 25 are supported at spaced apart positions around the drum I5 sothat an axle is located a suitable distance from each rail I4. Each saidaxle is adapted to support a spool vor bobbin 26 so that its face isparallel with the face of drum I5. When the spool or bobbin iscylindrical (Fig. 4) the axle is Vertical and when the spool or bobbinis conical (Fig. 6) the axle is suitably inclined. Yarn from each guide24 meets the exterior of the associated spool or bobbin at a pointadjacent to the point of Contact with the drum I5, the angle of feed ofthe yarn and the distance between the said guide and the point at whichthe yarn meets the exterior of the spool or bobbin remaining constant,or nearly so.

Each axle 25 rises from an angularly shaped lever 28 to which it is xedat such a position that it may be swung toward or from the drum I5, atwill. The inner end of each lever 28 is pivotally connected to the upperface of the plate I2 and its outer end 28a constitutes a handle. Thepivot pin 29 of each lever 28 extends through the plate I2 and carries afriction element comprising a spring 30 and a tension nut 30a which isadjusted so that lever 28 is held against free movement and so that theexterior of the spool or bobbin 26 or the package associated therewithis yieldingly held against the periphery of the drum I5. As the diameterof the package associated with each axle increases, the axle is movedoutwardly and theV exterior of the package is held in contactv with thedrum in such manner that the tension on the yarn remains constant.

Cops as 32 from which yarn is drawn as it isV wound are supported onpins which rise from table I3. Y

A standard 33 which rises from the centre of table I 3 carries arms 34which support suitable yarn guides and tension devices. Each guidecomprises a loop 3 6 and each tension device comprisesthree rollers 35supported on pivoted arms 35a in such manner that their relativeposition may be varied to adjust the tension on the yarn being "Woundl jThe diameter of drum I5 determines the speed iat which the spools 26 arerevolved, and also the rate of travel of the slippers 22. With a smalldrum up to say one foot in diameter the guide groove 23 is arranged toreciprocate each slipper 22 once in each revolution (see Fig. 3). With adrum of larger diameter-the number of reciprocations will increase`inapproximate ratio thus with a drum three feet in diameter the shape ofthe guide groove will be such that each slipper is reciprocated threetimes in each revolution (see Fig. '7) The number of winding unitsactuated by Aeach drum is governed by the space occupied by such unitand the size of the wound spools or bobbins. A drum about one foot indiameter may actuate eight winding units each adapted to wind a spool orbobbin up to 5 inches in diameter while a drum three feet in diametermay actuate twenty-four winding units and so on.

In operation, yarn from each cop 32 is drawn through a guide 36, arounda set of tension rollers 35, under a guide hook 24 and thence to a spoolor bobbin 26 about which it is Wound in helical layers of constantlychanging direction. It will be apparent that by means of levers 28 anyspool or bobbin may readily be swung to an inoperative position toenable a break in the yarn to be repaired or a completed spool or bobbinto be removed, without in any way interrupting the winding of otherspools or bobbins. Y I` claimf- 1. In a winding machine, a drum, avertical shaft supporting said drum, means to rotate said shaft, lixedframing above and below said drum, upright guides fixed at each end tosaid framing in spaced relationship around said drum, an undulating camrecess in said drum, a reciprocatable slipper on each guide, means oneach slipper to engage the said cam, an axle for a winding spoolassociated with each upright guide, means to support each said axle sothat the winding spool supported by it or a package on said spool may bearranged to frictionally contact with the said drum in such manner thatthe line of contact is parallel with the guide Vwith which it isassociated, and a yarn guide on each slipper arranged to direct yarn toa spool or package adjacent to its point of contact with said drum.

2. In a winding machine, as claimed in claim 1, means whereby each axlesupport is pivotally mounted relatively to. fixed framing below the drumin such manner that as the diameter of a package about the axleincreases, said axle moves in an arcuate path away from the uprightguide with which it is associated.

3. In a yarn winding machine, as claimed in claimV l, means whereby eachaxle support is pivotally mounted relatively to'xed framing and frictionmeans arranged relatively to said pivot to hold said support so that itmay be displaced when the diameter of the package increases sufcientlyto overcome the resistance of said friction means.

4. In a yarn winding machine, as claimed in claim 1, an axle support inthe form of. a bent lever, means whereby said support is pivoted nearits bend relatively to fixed framing, friction means arranged about saidpivot to contact with an adjacent xed member and means to adjust thepressure exerted by said friction means whereby the said lever is heldin operative position so that it may move when the pressure exerted bythe friction means is exceeded by the pressure exerted on a packagesupported by said axle.

5. In a yarn winding machine, as claimed in claim 1, an axle support inthe form of a bent lever, means whereby saidsupport is pivoted near itsbend relatively to iixed framing, the axlebeing supported at one end ofsaid lever and the other end of the lever projecting as a handle forcontrol purposes, friction means arranged about said pivot to contactwith an adjacent fixed member, and means to adjust the pressure exertedby said friction means whereby the said lever is held inoperativeposition so that it may `move when the pressure exerted by the frictionmeans is exceeded by the pressure exerted on a package supported by saidaxle.

WALTER HENRY BOWDEN.

